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Texas Instruments OPA4189IDR — Analog & Data Acquisition

TI OPA4189IDR quad op-amp, 14 MHz GBP, 20 V/µs slew rate

MPNOPA4189IDR
End of Life

Texas Instruments OPA4189IDR, quad general-purpose op-amp, 14 MHz gain bandwidth product, 20 V/µs slew rate, rail-to-rail output, 4.5 V to 36 V supply, 14-SOIC package, -40°C to 125°C.

$6.18Ref. price · indicative, final on quote
Texas Instruments OPA4189IDR datasheet (PDF)
Packaging14-SOIC (0.154", 3.90mm Width)
RoHSNot applicable
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

OPA4189IDR specifications
ParameterValue
Output typeRail-to-Rail
MountingSurface Mount
Amplifier typeGeneral Purpose
Voltage - input offset800 µV
Voltage - supply span4.5 V
Current - supply1.3mA (x4 Channels)
Current - input bias70 pA
Current - output (Channel)65 mA
Operating temperature-40°C ~ 125°C (TA)
-3db bandwidth8 MHz
Gain bandwidth product14 MHz
PackageTape & Reel (TR); Cut Tape (CT)
Slew rate20V/µs
Case14-SOIC (0.154\", 3.90mm Width)
Number of circuits4

Product details

The Texas Instruments OPA4189IDR is a quad-channel, general-purpose op-amp with a 14 MHz gain bandwidth product and a 20 V/µs slew rate.

Rail-to-rail output with 65 mA per channel drive lets this op-amp swing close to the supply rails into moderate loads — useful for driving ADC inputs, multiplexers, or short cable runs without a separate buffer stage. The 70 pA input bias current is low enough for most high-impedance sensor interfaces, but not as low as CMOS-input competitors.

No special pad geometry or thermal vias are needed for this 1.3 mA per channel part.

Frequently asked questions

What is the difference between OPA4189IDR and OPA4192IDR?

The OPA4192IDR is a higher-precision sibling with lower offset voltage (typically 5 µV) and lower noise, but a similar 10 MHz GBP. The OPA4189IDR offers a slightly higher 14 MHz GBP and 20 V/µs slew rate at a lower supply current per channel (1.3 mA vs 1 mA for the OPA4192). Choose the OPA4189 when speed per milliamp matters more than sub-100 µV offset.

Can OPA4189IDR replace OPA4192?

In many general-purpose circuits, yes — both are quad op-amps in 14-SOIC with rail-to-rail output and 4.5 V to 36 V supply range. However, the OPA4189 has a higher 800 µV max offset versus the OPA4192's typical 5 µV, so precision DC applications may need a layout or gain adjustment. Check the offset error budget before swapping.

What is OPA4189IDR's listed slew rate?

The slew rate is 20 V/µs. This supports large-signal bandwidth up to roughly 300 kHz at 20 Vpp output, adequate for fast multiplexer switching or driving ADC inputs.